Multifunctional fish-skin collagen-based hydrogel sealant with dual-dynamic-bond cross-linked for rapid hemostasis and accelerated wound healing

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 266, С. 131179 - 131179

Опубликована: Март 27, 2024

Язык: Английский

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A bioactive composite sponge based on biomimetic collagen fibril and oxidized alginate for noncompressible hemorrhage and wound healing

Carbohydrate Polymers, Год журнала: 2024, Номер 343, С. 122409 - 122409

Опубликована: Июнь 19, 2024

Язык: Английский

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Super Tough Anti‐freezing and Antibacterial Hydrogel With Multi‐crosslinked Network for Flexible Strain Sensor

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Abstract Addressing the diverse environmental demands for electronic material performance, design of a multifunctional ionic conductive hydrogel with mechanical flexibility, anti‐freezing capability, and antibacterial characteristics represents an optimal solution. Leveraging Dead Sea effect strong hydrogen bonding, this study exploits CaCl 2 abundant hydroxyl groups in phytic acid (PA) to induce chain entanglements, thereby constructing complex, multi‐crosslinked network. Furthermore, PA ternary solvent systems (CaCl /Glycerol/H O) synergistically impart excellent strength, toughness (with tensile strength 8.93 MPa, elongation at break 859.93%, 39.92 MJ m −3 ), high electrical conductivity, antifreeze properties, strain sensitivity (gauge factor up 2.10) hydrogels. Remarkably, structure maintains stability even after undergoing 6000 loading‐unloading cycles, demonstrating its outstanding fatigue resistance. Upon receiving external stimuli, exhibits response time 126 ms, making it ideal dynamic monitoring human motion signals. This offers novel insight into potential application hydrogels as flexible sensors challenging environments.

Язык: Английский

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Self-Healing, Freeze-Resistant, and Sustainable Aloe Polysaccharide-Based Hydrogels for Multifunctional Sensing

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(11), С. 4464 - 4475

Опубликована: Март 7, 2024

Although designing wearable sensors by using sustainable hydrogels has been gaining widespread attention, the fabrication of inexpensive biobased hydrogel with fast self-healing and antibacterial abilities remains challenging. In this study, green were prepared from aloe vera polysaccharides (AP), poly(vinyl alcohol), sodium alginate (SA). Their mechanical, electrical, biodegradable, characteristics investigated. The an AP/SA ratio 9:2 demonstrated excellent tensile properties elongation at break, toughness, electrical conductivity 1477.3%, 1.19 MJ/m3, 12.67 × 10–2 S/m, respectively. remained electrically conductive −20 °C. During strain sensing, it exhibited stability sensitivity (gauge factor: 9.2), a wide range (up to 1400%), high efficiency 96.1% over 4 min. It was also able detect low strains (1%). These enabled assembly into monitor physiological signals generated large movements body joints, small facial expression changes, talking, drinking. An assembled humidity sensor detected relative levels 45–98% monitored human respiration patterns in different exercise states. Consequently, is potential functional material for sustainable, flexible, electronics.

Язык: Английский

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Ultra-Stretchable, Adhesive, Conductive, and Antifreezing Multinetwork Borate Ester-Based Hydrogel for Wearable Strain Sensor and VOC Absorption

ACS Sensors, Год журнала: 2024, Номер 9(10), С. 5322 - 5332

Опубликована: Окт. 15, 2024

Hydrogels based on borate ester bonds exhibit remarkable tensile strength and self-healing ability, which make them a promising material for various biological research strain sensor applications. However, in order to meet the practical application of hydrogel sensors, they must also show high conductivity, frost resistance, proper adhesion, is still continuous challenge. Herein, triple network was prepared using poly(vinyl alcohol) (PVA) as first network, ethylene imine polymer (PEI) second poly(acrylamide-

Язык: Английский

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Food-packaging applications and mechanism of polysaccharides and polyphenols in multicomponent protein complex system: A review

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 270, С. 132513 - 132513

Опубликована: Май 21, 2024

Язык: Английский

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Double-skeleton interpenetrating network-structured alkaline solid-state electrolyte enables flexible zinc-air batteries with enhanced power density and long-term cycle life

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 672, С. 32 - 42

Опубликована: Май 27, 2024

Язык: Английский

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Injectable hydrogels for bioelectronics: A viable alternative to traditional hydrogels

Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153391 - 153391

Опубликована: Июнь 22, 2024

Язык: Английский

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Design of Cellulose Nanocrystal-Based Self-Healing Nanocomposite Hydrogels and Application in Motion Sensing and Sweat Detection

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(28), С. 37087 - 37099

Опубликована: Июль 3, 2024

Hydrogels, as flexible materials, have been widely used in the field of sensors. Human sweat contains a variety biomarkers that can reflect physiological state human body. Therefore, it is great practical significance and application value to realize detection composition combine with motion sensing through hydrogel. Based on mussel-inspired chemistry, polydopamine (PDA) gold nanoparticles (AuNPs) were coated surface cellulose nanocrystals (CNCs) obtain CNC-based nanocomposites (CNCs@PDA-Au), which could simultaneously enhance mechanical, electrochemical, self-healing properties hydrogels. The CNCs@PDA-Au was composited poly(vinyl alcohol) (PVA) hydrogel nanocomposite (PVA/CNCs@PDA-Au) by freeze-thaw cycles. PVA/CNCs@PDA-Au has excellent mechanical strength (7.2 MPa) (88.3%). sensors designed exhibited fast response time (122.9 ms), wide strain range (0-600.0%), stability, fatigue resistance. With unique electrochemical redox uric acid, sensor successfully realized acid (1.0-100.0 μmol/L) low limit (0.42 μmol/L). In this study, dual

Язык: Английский

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Preparation and characterization of starch carbamate modified natural sodium alginate composite hydrogel blend formulation and its application for slow-release fertilizer

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 278, С. 134713 - 134713

Опубликована: Авг. 16, 2024

Язык: Английский

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